Breakeven Will Not Leave My Head

I have a habit of singing the same lines of the same songs for days in a row. My wife loves it. This song, Breakeven by The Script, is perhaps #1 at the moment. The band is from Ireland, yet as with so many singers…they have no accents when they sing. What is that all about? Why do most singers seems to sound like Americans when they sing? It’s bizarre. Here’s their site.